- #2705 of 3125
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Re: nav disc update [gfraigun]
by tom213
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Aug 22, 2007 (9:13 am)
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Replying to: gfraigun (Aug 21, 2007 7:35 pm)
We're just back from a 2800 mile road trip and I'm pretty disappointed in this GM Nav System. Since I already had a TomTom nav system for when we use my wife's car or fly somewhere, I thought I'd run both systems to see which was better or more accurate with directions. Well, the TomTom won out by far!!! I purchased my Tahoe in March 2007 (it was assembled in February) and I received a map update from TomTom in December. It was "dueling Nav Systems" on many occasions. As I said, I was disappointed with the GM system, but not just because of the outdated maps. I really like the TomTom display better too. The (GM) "stick roads" and display resolution just looks cheap when you compare them. It sure would be nice if they could come up with a software change to make the display a little better. For this being a $2000-plus option, it could be a lot better than it is when you get just the same for $300-$500 in a portable system!!
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- #2706 of 3125
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Re: nav disc update [tom213]
by gfraigun
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Aug 22, 2007 (9:40 am)
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Replying to: tom213 (Aug 22, 2007 9:13 am)
We have a 2002 infiniti with an early version NAV system, and I was pleased with the GM system when compared to what we already have. I like the way it adjusts the travel times with speed. Neither one provides the best directions I guess they have calculations that sometimes calls the longer path the faster one. Preference for right turns over left ones.. that sort of stuff. I've never used a Tom Tom, but I have a friend with one and said he wasn't that impressed. I think it just matters on what your preferences are. At least with a functional Nav it will get you where you are trying to go, and I suppose thats the main point of them.
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- #2707 of 3125
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Lowrance GPS
by csprick
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Aug 22, 2007 (11:49 am)
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I've always felt that the factory installed nav systems were grossly overpriced and not as good as the after market units.
I've used a Lowrance iWay 500 for years and installed it in my '07 Tahoe when I bought it. See photos here. Works great and I'd recommend Lowrance any day. They have been making marine GPS units for years and got into the automobile market about 3 - 4 years ago.
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- #2708 of 3125
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Re: Lowrance GPS [csprick]
by steve_ HOST
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Aug 22, 2007 (11:55 am)
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Replying to: csprick (Aug 22, 2007 11:49 am)
They have been making marine GPS units for years
Their depth finder tech could come in handy for some of the potholes out there!
Check out the GPS Navigation System discussion too. The Garmin/Magellan/Tom Tom people would be interested to hear about the Lowrance.
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- #2709 of 3125
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Re: Lowrance GPS [csprick]
by martin22
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Aug 22, 2007 (3:43 pm)
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Replying to: csprick (Aug 22, 2007 11:49 am)
I can also thoroughly recommend the Lowrance iWay 500. We have a windscreen mount in both cars and a mount in our boat. (For a device intended for road navigation, the details shown of all the creeks on the lakes we use are amazing.) I'm also impressed by the way Lowrance make available for free, downloadable software updates including updated POI info.
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- #2710 of 3125
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Re: Lowrance GPS [csprick]
by tom213
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Aug 23, 2007 (8:49 am)
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Replying to: csprick (Aug 22, 2007 11:49 am)
Looks very nice! The screen is a little larger than the TomTom which is also nice. I noticed that you had an external antenna. One is available for the TomTom, but I don't need it (placed in the same location as you have your system) and still get strong satellite coverage. There are a few advantages to the factory installed system with it's tie to OnStar/Phone system and larger screen, but they're not worth the high price tag GM is asking for this option, if you ask me. I sure hope the price comes down for database updates after I get the 2 free ones from GM. The other thing that's nice about the portable systems (at least the TomTom) is that I have a docking station at my home computer and can download updated Points of Interest. The POI's in the GM system are just not as current. I guess the point of all this is that if you're considering purchasing one of these vehicles, you might save some money if you opt out of the factory Nav system and go for a portable system.
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- #2711 of 3125
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Re: Lowrance GPS [tom213]
by csprick
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Aug 24, 2007 (8:54 am)
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Replying to: tom213 (Aug 23, 2007 8:49 am)
The Lowrance 500c also has a USB port so I can hook it to my computer and update the database, OS, etc. Likewise, it has a hard drive (20 gig, as I recall) which lets one install MP3 songs and jpeg photos. I must have over 500 songs in it, with room for a lot more.
By hooking it to the AUX port on the Tahoe radio, I can get voice driving instructions and play songs thru the Bose system. The voice directions override the song and, when complete, the song continues. Sounds great thru the Bose.
People have also programmed different "skins" to change the appearance of the touch screen and button locations.
Unfortunately Lowrance hs stopped making the 500c - replaced by the 650c, I think. They also make smaller units which use SmartCards for storage.
If interested, there is a Forum HERE with lots of information from Lowrance GPS owners.
I'm happy with mine.
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- #2712 of 3125
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Re: Cricket noise - front driver's side [txyukon]
by rjm1234
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Aug 27, 2007 (11:35 am)
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Replying to: txyukon (Aug 07, 2007 10:15 am)
I have had the same problem for the past year. I can hear a high pitched squeal sound coming from the engine bay. No one was been able to diagnose the problem as of yet. Recently I have noticed that the noise will become quieter when I am driving at slow speeds and turn the steering wheel. I too would appreciate any help in determining what is causing this sound.
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- #2714 of 3125
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Re: Cricket noise - front driver's side [rjm1234]
by shawnhackett
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Aug 28, 2007 (4:51 am)
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Replying to: rjm1234 (Aug 27, 2007 11:35 am)
My 2007 Tahoe LTZ did the same thing with the cricket noise, but my dealer tried a few things and figured it out.
The noise is in the steering mechanism somewhere. They had to replace the entire mechanism, but it did the trick.
Ask your service manager to call the service manager at Jim Reed Chevrolet Service in Nashville, TN. and explain your issue. Have him mention my name, Shawn Hackett, owner of the 07 Black Tahoe LTZ, and he should remember and can relay the proper fix to your service manager.
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